Title:
FUEL-INJECTION CONTROL DEVICE AND FUEL-INJECTION CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2021/053935
Kind Code:
A1
Abstract:
The present invention forms a rich air-fuel mixture around a spark plug and suppresses exhaustion, even when the environmental conditions change. According to one aspect, the present invention provides a fuel-injection control device 150 that injects a fuel from a fuel injection device 101 a plurality of times during one combustion cycle of an internal combustion engine, the fuel-injection control device including a control unit 104 that performs control so as to reduce the ratio of the injection amount at the maximum injection, which involves the maximum injection amount within a late period of a compression stroke 803 in one combustion cycle, to the total value of injection amounts at injections performed before the maximum injection, as the pressure of a fuel supplied to the fuel injection device 101 becomes higher.
Inventors:
KUSAKABE RYO (JP)
SUKEGAWA YOSHIHIRO (JP)
SARUWATARI MASAYUKI (JP)
OBA HISAHIRO (JP)
SUKEGAWA YOSHIHIRO (JP)
SARUWATARI MASAYUKI (JP)
OBA HISAHIRO (JP)
Application Number:
PCT/JP2020/026523
Publication Date:
March 25, 2021
Filing Date:
July 07, 2020
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F02D29/06; F02D41/04; F02D41/34; F02D43/00; F02D45/00; F02P5/15
Foreign References:
| JP2014125899A | 2014-07-07 | |||
| JP2018204447A | 2018-12-27 | |||
| JP2014047629A | 2014-03-17 | |||
| JP2014206116A | 2014-10-30 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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